Adjust image quality

GroupDocs.Viewer enables you to adjust quality of output images contained by the source PDF document. To adjust image quality use PdfOptions.ImageQualityoption of HtmlViewOptions class.

PdfOptions.ImageQuality can be set to:

  • Low - The acceptable quality, best performance and least size of the output image.
  • Medium - Better quality and slower performance.
  • High - Best quality but slow performance.

NOTE: this option is supported when rendering to HTML only.

Following code snippet shows how to adjust image quality when rendering to HTML.

using (Viewer viewer = new Viewer("sample.docx"))
{
    HtmlViewOptions viewOptions = HtmlViewOptions.ForEmbeddedResources();
    viewOptions.PdfOptions.ImageQuality = ImageQuality.Medium;

    viewer.View(viewOptions);
}

More resources

View PDF Documents Online

Along with full-featured .NET library we provide simple but powerful free online Apps. View PDF files online with GroupDocs Viewer App.

GitHub Examples

You may easily run the code above and see the feature in action in our GitHub examples:

View PDF Documents Disable characters grouping